JP2779874B2 - Front grill guard - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for a front grill guard of a tiltable cab-over-engine type automobile. The present invention relates to a safety measure for securing a space for a driver's seat and a passenger's seat even in a collision.

[0002]

2. Description of the Related Art A front provided with a plurality of arms provided at a position higher than a front bumper of a motor vehicle and perpendicular to the front bumper, and a guard bar mounted on the arm so as to be parallel to the front bumper. -Safety structures with grill guards have become widespread.
At present, it is used for off-road vehicles and van-structured vehicles. It has been recognized that such a front grill guard is useful as a safety structure that can secure a living space for a driver's seat and a passenger's seat in a collision.

[0003] The conventional front grill guard has a structure fixed to a vehicle frame or a front bumper.

[0004]

Therefore, the conventional front grill guard cannot be mounted on a vehicle body structure having a tiltable cab. That is,
For large or medium-sized trucks and tractors for towing trailers, a cab is provided above the engine to provide the driver's accommodation. ing. This tiltable cab-over-engine type vehicle body structure is a very excellent structure in which the vehicle body length can be effectively used for loading cargo. In this tiltable vehicle body structure, if a front grill guard having a conventional structure is provided, the cab cannot be tilted.

[0005] Mercedes-Benz military vehicles (model 2
638LS and 3850A), the cab has a tiltable structure, and a tall second bumper is mounted on the front bumper. In this military vehicle structure, the cab is tilted. At times, it is necessary to loosen the mounting bolt of the second bumper, remove the second bumper itself, release the tilt after the maintenance, and then mount the second bumper again with the bolt, which is extremely complicated. This structure is feasible for military vehicles used only by trained personnel, but it is practically impossible for general transportation vehicles to effectively check the tightening of bolts after maintenance is completed, and it is widely used. It is not appropriate to do so. Further, in such a structure that requires a complicated operation, once the second bumper is removed, traveling continues with the second bumper removed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a front grill guard capable of tilting a cab without requiring a complicated operation for a cab-over-engine type vehicle body structure capable of tilting. An object of the present invention is to provide a safety device that ensures a large cubic living space in the event of a collision, even for a tiltable cab structure.

[0007]

SUMMARY OF THE INVENTION The present invention comprises a front arm having a plurality of arms provided perpendicular to a front bumper, and a guard bar mounted on the arm so as to be parallel to the front bumper. In the grill guard, the arm is rotatably mounted on a frame of the vehicle in a plane parallel to the longitudinal direction of the vehicle, and one end is mounted on the arm, and the other end is in contact with a stopper fixed to the frame. And a link rod connecting the arm or the guard bar and the tiltable cab.

An elastic material is interposed between the stopper and the gusset, one end of the gusset is rotatably mounted on the arm, and the link rod is made of a material softer than a guard bar. It is desirable.

[0009]

[Function] When the cab is tilted, the front grill guard is tilted forward by the link rod. When the cab is returned to the normal position from the tilt state, the front grill guard also returns to the normal position in conjunction with the link rod.

In the event of a collision, even if the link rod is broken, the gusset acts to maintain the position of the front grill guard, so that more space is secured in the cab.

In a structure in which an elastic material is interposed between the gusset and the vehicle body frame, the impact can be somewhat absorbed by the elastic material in the event of a collision.

In the structure in which the gusset is rotatably attached to the arm, the clearance between the front portion of the cab and the grill guard can be reduced, and the effective space for the vehicle length can be designed to be large.

[0013]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a configuration of an embodiment of the present invention, and FIG. 2 is a perspective view showing an external structure of a cab-over-engine type vehicle equipped with a front grill guard of the embodiment of the present invention.

In the embodiment of the present invention, a plurality of arms 2 provided perpendicular to a front bumper 1 are provided.
And a guard bar 3 attached to the front bumper 1 so as to be parallel to the front bumper 1. The arm 2 is attached to a frame 4 of the vehicle so as to be rotatable in a plane parallel to the longitudinal direction of the vehicle. Attach, frame 4 at the other end
A gusset 6 that abuts a stopper 5 fixed to the cab 7; and a link rod 8 that connects the arm 2 or the guard bar 3 to the tiltable cab 7. An elastic material 9 is provided between the stopper 5 and the gusset 6. One end of the gusset 6 is rotatably attached to the arm 2, and the link rod 8
Is made of a material that is softer than the guard bar.

Next, the operation of the embodiment of the present invention configured as described above will be described. FIG. 3 is a side view showing the tilted state of the cab in the embodiment of the present invention, and FIG. 4 is a perspective view showing the appearance thereof.

When the cab 7 is tilted forward with the cab hinge 11 as a fulcrum, a link rod 8 for rotatably connecting the front surface of the cab 7 to the arm 2 or the guard bar 3 is provided with an A.
The force in the direction of the arrow is applied, and the arm 2 is moved to the guard bar pivot 1
Rotate forward with 2 as a fulcrum. As the arm 2 rotates, the gusset 6 is pulled forward.

Since the arm 2 and the gusset 6 are rotatably connected by the pin 13, the gusset 6 is
Pulled forward along the fall without changing the spacing significantly. Therefore, even if the distance between the arm 2 and the front surface of the cab 7 is small, they do not interfere with each other in the course of tilting. For this reason, the front surface of the cab 7 can be extended forward, and a front grill guard is provided. Also, a large living space in the cab 7 at the time of collision can be secured.

When the operation of returning the cab 7 to the normal position from such a tilted state is performed, the arm 2 and the guard bar 3 are pulled back by the link rod 8, and the gusset 6 rotates with the pin 13 as a fulcrum with this operation. Then, the end sliding on the frame 4 is moved in the direction of arrow B, and the stopper 5 comes into contact with the elastic member 9 to stop the movement, and the cab 7 returns to the normal position shown in FIG.

The elastic member 9 alleviates the impact at the time of contact, and also alleviates the impact received by the gusset 6 via the arm 2 and the guard bar 3 when a collision occurs and the link rod 8 is broken.

[0020]

As described above, according to the present invention, even if a front grill guard is provided on a cab-over-engine type vehicle body which can be tilted, the cab can be tilted without complicated operation. In addition, since the gap between the front portion of the cab and the grill guard can be reduced, a living space in the cab required at the time of a collision can be largely secured without affecting other structures. .

[Brief description of the drawings]

FIG. 1 is a side view showing a configuration of an embodiment of the present invention.

FIG. 2 is a perspective view showing an external structure of a cab-over-engine type vehicle equipped with a front grill guard according to the embodiment of the present invention.

FIG. 3 is a side view showing a tilted state of the cab according to the embodiment of the present invention.

FIG. 4 is a perspective view showing an appearance structure when the cab is tilted in the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front bumper 2 Arm 3 Guard bar 4 Frame 5 Stopper 6 Gusset 7 Cab 8 Link rod 9 Elastic material 11 Cab hinge 12 Guard bar pivot 13 Pin

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁶ , DB name) B60R 19/52 B60R 19/38 B60R 19/44

Claims (4)

(57) [Claims] 1. A front grill guard comprising: a plurality of arms provided vertically to a front bumper; and a guard bar mounted on the arm so as to be parallel to the front bumper, wherein the arm is a vehicle. A gusset that is rotatably mounted on the frame in a plane parallel to the longitudinal direction of the vehicle, one end of which is mounted on the arm, and the other end of which is in contact with a stopper fixed to the frame; and the arm or the guard bar; A front grill guard, comprising: a link rod connecting a tiltable cab to the cab. 2. The front grill guard according to claim 1, wherein an elastic material is interposed between the stopper and the gusset. 3. The front grill guard according to claim 1, wherein one end of the gusset is rotatably attached to the arm. 4. The front link according to claim 1, wherein the link rod is made of a material that is softer than a guard bar.
Grill guard.